Core Insights - The 12306 team, consisting of 231 young engineers, has been recognized for their contributions to optimizing China's largest real-time ticketing system, particularly through innovative features like "reserve ticketing" and "age-friendly services" [1][3] - The team has significantly improved system performance, reducing ticket query response time from 15 seconds to 0.2 seconds and passenger verification time to 1.5 seconds, while also achieving a cumulative sale of 18.5 billion electronic tickets by the end of 2024 [3][8] Group 1 - The 12306 system faced a critical challenge during the 2012 Spring Festival, with access exceeding 1.4 billion visits, prompting a complete overhaul of the system architecture by the young engineers [2][3] - The team has developed various technologies, including the PSR model for passenger service records and a self-developed intelligent scheduling algorithm, enhancing the system's capacity to handle large volumes of traffic [3][4] - The team has also implemented a facial recognition feature to streamline the ticketing process, achieving a peak usage rate of over 1,300 people per second during the 2024 Spring Festival [4][5] Group 2 - The 12306 team has successfully adapted their ticketing solutions for international markets, such as the LCR Ticket for the China-Laos Railway, which accommodates local user habits and languages [7][8] - The team has faced cultural and technical challenges while implementing ticketing systems for projects like the Jakarta-Bandung High-Speed Railway, emphasizing the importance of local adaptation [7][8] - The cumulative service of the ticketing systems for the China-Laos Railway and the Jakarta-Bandung High-Speed Railway has reached 47.74 million passengers [8]